1991 Infiniti Q45 oil pressure drops down

1991 INFINITI Q45
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KELOP
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Engine Performance problem
1991 Infiniti Q45 V8 Automatic 72000 miles

the oil pressure of the car drops down and the oil pressure gauge light is turn on; shall I replace the oil pump?
Oct 18, 2009 at 2:35 PM
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RASMATAZ
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Check the oil pressure with a mechanical gauge if normal replace the oil pressure switch abnormal could mean oil pump and engine bearings.
Oct 18, 2009 at 2:40 PM